Mixed convective non-linear radiative flow with TiO2-Cu-water hybrid nanomaterials and induced magnetic field

被引:35
作者
Khan, Sohail Ahmad [1 ]
Khan, Muhammad Ijaz [1 ]
Hayat, Tasawar [1 ,2 ]
Javed, Muhammad Faisal [3 ]
Alsaedi, Ahmed [2 ]
机构
[1] Quaid I Azam Univ, Dept Math, Islamabad, Pakistan
[2] King Abdulaziz Univ, Fac Sci, Nonlinear Anal & Appl Math NAAM Res Grp, Jeddah, Saudi Arabia
[3] COMSATS Inst Informat Technol, Dept Civil Engn, Abbottabad, Pakistan
关键词
Lorentz force; Stagnation point flow; Non-linear thermal radiation; Hybrid nanofluid; Heat generation; STAGNATION-POINT FLOW; HOMOGENEOUS-HETEROGENEOUS REACTIONS; BOUNDARY-LAYER-FLOW; CHRISTOV HEAT-FLUX; VISCOUS DISSIPATION; ENTROPY GENERATION; NANOFLUID FLOW; CHEMICAL-REACTION; THERMAL-CONDUCTIVITY; NUMERICAL-SOLUTIONS;
D O I
10.1108/HFF-12-2018-0748
中图分类号
O414.1 [热力学];
学科分类号
摘要
Purpose The purpose of this paper is to address the impact of induced magnetic field in mixed convective stagnation flow of TiO2-Cu-water hybrid nanofluid towards a stretchable sheet. Non-linear thermal radiation and heat source/sink are accounted. Flow of hybrid nanofluid is discussed. Non-linear partial differential expressions are converted to ordinary ones through appropriate transformations. Design/methodology/approach The obtained systems are solved for convergence solutions via homotopy analysis method. Graphical results are discussed for different physical variables on the velocity, induced magnetic field and temperature fields for both Cu water nanofluid and TiO2-Cu-water hybrid nanofluid. Finally, the effect of different physical variables on skin friction coefficient (C-fx) and Nusselt number Nu(x) in the presence of water nanofluid and TiO2-Cu-water hybrid nanofluid are discussed. Findings Velocities and induced magnetic field are increasing functions of mixed convection parameter and nanoparticle volume fraction. Temperature rises for higher radiation parameter. Skin friction is greater in case of Cu-water nanoliquid, while Nusselt number is less for Cu-water nanofluid when they are compared with hybrid nanoliquid TiO2-Cu-water. Originality/value No such work is not yet present in the literature.
引用
收藏
页码:2754 / 2774
页数:21
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